Toshiba Tecra 780DVD, Tecra 780CDM Service Manual

Tecra 780CDM / 780DVD Disassembly Overview

The information offered in this section is an overview of the Maintenance Manual, Chapter 4, Replacement Procedures. If you have any questions or concerns regarding the proper procedure please refer to the Maintenance Manual through the Toshiba Service and Support Website before you proceed.

This section explains how to remove Field Replaceable Units (FRUs). It may not be necessary to remove all the FRUs in order to replace one.

The chart is a guide to which FRUs need to be removed in order to remove others. The section numbers on the chart refer to the sections in the Maintenance Manual, Chapter 4.

Always start by removing the battery pack, next, optional items such as the optional PC card and optional memory module, then follow the line on the chart to determine which FRU you must remove next in order to repair the one you think is causing the computer to operate improperly.

To remove the battery pack, follow the steps below.

CAUTION: When handling battery packs, be careful not to short circuit the terminals. Also do not drop, hit or otherwise apply impact; do not scratch or break the casing; and do not twist or bend the battery pack.

1. Turn off the power to the computer. Disconnect the AC adapter and all external cables connected to the computer.

2. Turn the computer upside down with the front facing you and push the battery lock up to unlock it. A red dot shows when the lock is in the unlock position.

3. Pull out the battery release lever and slide it to the left to pop the battery up slightly.

4. Grasp the battery pack and lift it out.

To install the battery pack, follow the steps below.

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WARNING: The battery pack is a lithium ion battery which can explode if not replaced, used, handled or disposed of properly. Dispose of the battery as required by local ordinances or regulations. Use only batteries recommended by Toshiba as replacements.

NOTE: Check the battery terminals visually. If they are dirty, wipe them clean with a dry cloth.

1. Turn off the power to the computer. Disconnect the AC adapter and all external cables connected to the computer.

2. Make sure the battery release lever is pulled out then carefully insert the new or recharged battery pack.

3. Place your fingers just above two pins on the battery pack that fit into the locking mechanisms in the battery socket. Push the battery pack down carefully until it locks into place.

4. Push the battery lock down to secure it. The red dot will be covered.

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Tecra 780CDM / 780DVD Disassembly Overview, (cont.)

To remove the optional PC card, make sure the computer is in boot mode, then follow the steps below.

1. Turn off the power to the computer. Disconnect the AC adapter and all external cables connected to the computer.

2. Remove the battery pack.

3. Open or remove the PC card slot cover.

4. Press in slightly on the eject button for the upper and/or lower card and the button will pop out fully.

5. Now, press the button firmly to pop the PC card out partially.

6. Grasp the PC card and remove it.

7. Close or replace the PC card slot cover.

To install the PC card, follow the steps below.

1. Open or remove the PC card slot cover.

2. Insert the PC card and press gently to ensure a firm connection.

3. Close the slot cover or replace the cover with an appropriate one.

4. Install the battery pack.

To remove the SelectBay module, follow the steps below.

1. Turn off the power to the computer. Disconnect the AC adapter and all external cables connected to the computer.

2. Remove the battery pack.

3. Turn the computer upside down and slide the SelectBay lock to the unlock position, shown by a red box.

4. Pull out the release lever.

5. Push the release lever in firmly to pop the SelectBay module partially out of the bay.

6. Grasp the module and pull it out.

CAUTION: The SelectBay modules can become hot with use. Be careful when removing the module.

Install the SelectBay modules as described below.

1. Insert the module in the computer and press until it locks into place.

2. Fold the release lever into the closed position.

3. Slide the SelectBay lock to the locked position. The red box should not be visible.

4. Install the battery pack.

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Tecra 780CDM / 780DVD Disassembly Overview, (cont.)

You can use the SelectBay cover when you do not need to use a SelectBay module.

1. To install the cover, first remove the SelectBay module then hold the cover by the two finger grips and push it into place until you hear the latches click.

2. To remove the cover, grasp the two finger grips and pull the cover out.

To disassemble the DVD-ROM drive, follow the steps below.

1. Remove six M2x3 silver screws and two M2.5x6 silver screws securing the frame to the DVD-ROM drive.

2. Remove the connector cover.

3. Remove the metal frame, connector board, and disconnect the flexible cable.

To disassemble the FDD, follow the steps below.

1. Remove six M2x6 silver screws.

2. Turn the FDD over and release two latches securing the upper plastic frame and lower plastic frame. Turn it back over and lift off the cover.

3. Lift off the upper shield cover, unseat the flexible cable connector from the lower plastic frame, then lift out the FDD.

4. Pull the flexible cable out of the FDD connector.

5. Remove four M2x3 silver screws and remove the FDD from the bracket.

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Tecra 780CDM / 780DVD Disassembly Overview, (cont.)

To assemble the FDD, follow the steps below.

1. Seat the FDD in the bracket and secure the bracket with four M2x3 silver screws. Tighten screws to a torque of less than 2.2 kgfcm.

2. Insert the flexible cable into the connector. Press gently to assure a firm connection.

3. Seat the FDD in the lower plastic frame and set the upper shield cover in place.

4. Seat the flexible cable connector into the lower plastic frame.

5. Set the upper plastic frame in place, snap the two latches closed and secure six M2x6 silver screws.

CAUTION: Be very careful not to press on the top or bottom of the HDD. Pressure can destroy data or damage the drive.

To remove the HDD pack, follow the steps below.

1. Turn off the power to the computer. Disconnect the AC adapter and all external cables connected to the computer.

2. Remove the battery pack.

3. Turn the computer upside down.

4. Slide the HDD cover to the right and push the HDD pack forward until the back edge is aligned with a marker next to the HDD slot.

5. Lift up on the cover to remove the HDD pack.

To disassemble the HDD Pack, follow the steps below.

1. Slide the cover firmly in the direction of the arrow and remove it.

2. Remove the HDD tray and connector cover.

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Tecra 780CDM / 780DVD Disassembly Overview, (cont.)

Disassembling the HDD Pack, continued.

3. Remove four M2.5x6 silver screws from HDD pack.

4. Remove four M3x4 flat-head screws and the HDD frame.

5. Remove the flexible cable.

CAUTION: Do not try to disconnect by pulling on the flexible cable.

CAUTION: Do not apply pressure to the top or bottom of the HDD.

To assemble the HDD pack, follow the steps below.

1. Connect the flexible cable connector to the HDD.

2. Seat the HDD frame on the HDD and secure it with four M3x4 flat-head screws.

3. Seat the connector cover on the flexible cable connector. Be sure to match the positioning pins to the holes on the flexible cable and metal cover.

CAUTION: Do not hold the HDD by its flat surfaces. It may damage the HDD.

4. Secure four M2.5x6 silver screws.

5. Seat the cover onto the HDD.

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